661358520

素因数分解:

$2^3\times 3^5\times 5^1\times {\mathrm{68041}}^1$

素因数の和:68067

約数の個数: 96

約数和(自身を含む): 2229055920

約数和(自身を除く): 1567697400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 648, 810, 972, 1080, 1215, 1620, 1944, 2430, 3240, 4860, 9720, 68041, 136082, 204123, 272164, 340205, 408246, 544328, 612369, 680410, 816492, 1020615, 1224738, 1360820, 1632984, 1837107, 2041230, 2449476, 2721640, 3061845, 3674214, 4082460, 4898952, 5511321, 6123690, 7348428, 8164920, 9185535, 11022642, 12247380, 14696856, 16533963, 18371070, 22045284, 24494760, 27556605, 33067926, 36742140, 44090568, 55113210, 66135852, 73484280, 82669815, 110226420, 132271704, 165339630, 220452840, 330679260, 661358520]

約数ペア:

[(1, 661358520), (2, 330679260), (3, 220452840), (4, 165339630), (5, 132271704), (6, 110226420), (8, 82669815), (9, 73484280), (10, 66135852), (12, 55113210), (15, 44090568), (18, 36742140), (20, 33067926), (24, 27556605), (27, 24494760), (30, 22045284), (36, 18371070), (40, 16533963), (45, 14696856), (54, 12247380), (60, 11022642), (72, 9185535), (81, 8164920), (90, 7348428), (108, 6123690), (120, 5511321), (135, 4898952), (162, 4082460), (180, 3674214), (216, 3061845), (243, 2721640), (270, 2449476), (324, 2041230), (360, 1837107), (405, 1632984), (486, 1360820), (540, 1224738), (648, 1020615), (810, 816492), (972, 680410), (1080, 612369), (1215, 544328), (1620, 408246), (1944, 340205), (2430, 272164), (3240, 204123), (4860, 136082), (9720, 68041)]